ALASKA EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
227 PM EDT TUE MAR 24 2015
VALID 12Z SAT MAR 28 2015 - 12Z WED APR 01 2015
THROUGH THE MID-DAY 6 (30/00Z) PERIOD...THE 24/00Z ECENS...NAEFS
AND OPERATIONAL ECMWF RUN APPEARED TO HANDLE THE ENERGY ROTATING
THROUGH THE BASE OF THE UPPER-LEVEL TROUGH AXIS INVOF 155W. THE
DETAILS OF THE INDIVIDUAL MID-LEVEL SHORTWAVES MIGRATING NORTHWARD
INTO THE GULF OF ALASKA---AND THE INTENSITY/TRACK OF THESE
SYSTEMS---INTO THE UPPER-LEVEL RIDGE WERE REASONABLY DETAILED BY
THE 24/00Z OPERATIONAL/DETERMINISTIC ECMWF.
TEMPERATURE FORECASTS WILL CONTINUE TO BE 'ABOVE NORMAL' ACROSS
THE CENTRAL INTERIOR---AND SLIGHTLY ABOVE NORMAL TEMPS/POPS ALONG
THE COAST LINE---WHERE EMBEDDED SHORTWAVE ENERGY MOVES
COUNTERCLOCKWISE THROUGH THE GULF AND INTO THE WESTERN PERIPHERY
OF THE UPPER-LEVEL RIDGE (ANCHORED ACROSS NORTH CENTRAL ALASKA AND
NORTHWEST CANADA).
VOJTESAK